Answer:
.363
Step-by-step explanation:
I believe that the answer is .363, I didn't round anything
why not just ask the question here instead? :)
We can draw this as:
We can use the Pythagorean theorem to find the length of the cable, as it is the hypotenuse of a right triangle:
![\begin{gathered} c^2=7^2+8^2 \\ c^2=49+64 \\ c^2=113 \\ c=\sqrt[]{113} \\ c\approx10.63 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20c%5E2%3D7%5E2%2B8%5E2%20%5C%5C%20c%5E2%3D49%2B64%20%5C%5C%20c%5E2%3D113%20%5C%5C%20c%3D%5Csqrt%5B%5D%7B113%7D%20%5C%5C%20c%5Capprox10.63%20%5Cend%7Bgathered%7D)
Answer: the cable length is 10.63 m.
Subtract 5 to both sides so that the equation becomes -2x^2 + 6x - 1 = 0.
To find the solutions to this equation, we can apply the quadratic formula. This quadratic formula solves equations of the form ax^2 + bx + c = 0
x = [ -b ± √(b^2 - 4ac) ] / (2a)
x = [ -6 ± √((6)^2 - 4(-2)(-1)) ] / ( 2(-2) )
x = [-6 ± √(36 - (8) ) ] / ( -4 )
x = [-6 ± √(28) ] / (-4)
x = [-6 ± 2*sqrt(7) ] / (-4 )
x =3/2 ± -sqrt(7)/ 2
The answers are 3/2 + sqrt(7)/2 and 3/2 - sqrt(7)/2.
Answer:
The Correct answer is D Taking notes on information in the video. Hope this helps! Good Luck! Have a good day!
Step-by-step explanation:
I took the test.